Improvement in the cutting apparatus of harvesters



D. H. THAYER.

HARVESTER. No. 31,854. v:Patented Mar. 26, 1861.

l To all whom it may concern:

UNITED STATES PATENT OFFICE.

DANIEL H. THAYER, OE LANSING, NEW YORK, -ASSIGNOR TO HIMSELF AND STEPHEN BAKER, OF SAME PLACE.

IMPROVEMENT IN THE CUTTING APPARATUS OFHARVESTERS.

Specification forming part of Letters Patent No. 31,854datcd March 26, 15611.

Be it known that I, DANIEL H. THAYER, of Lansing, in the county of Tompkins and State of New York, have invented a new and use- 1cul Improvement in Grain and Grass Harvesters; and I dohereby declare that the following is a full, clear, and exact description ofthe same, reference being had to the annexed drawings, making a part of this specification,

- in which- Figure 1 is a section of my invention,taken in the line x w, Fig. 2. Fig. 2 is a plan or top `form, and may, be constructed as usual, with the exception that their back parts or shoulders, c, which adjoinor abut against the `iinger-bar, project above the latter a certain distance, as shown in Fig. 1. The back parts of A the fingers B, just in front of the shoulders c,

are recessed or hollowed out, as shown atb, and these recesses at their back parts extend down to a level with the upper surface of the nger-bar A, as shown clearly in Fig. l. The recesses b, it will be seen by referring to Fig.

2, form a narrow wall, c, and two cuttingedges, cl d, at each side of each finger.

C represents a cutter-bar, to which theusual V-shaped teeth, e, are attached. The cutterbar Q is iitted in guides D, attached to the finger-bar A, and these guides are sufficiently elevated to allow the teeth e to work on the back parts of the ngers. This arrangement admits of a space between the sickle and iinger bar, as shown clearly in Fig. l. l The guides D it will be noticed,have projections f on their lower parts, which constitute supports on which the cuttersrest, and these projections the cutter-bar C, as indicated by the red ari rows, and a free escape being thus allowed for said substances, the sickle is eectually pre` vented from 'choking or clogging, and also from gumming up, as the moisture contained in grass has no opportunity to collect underneath the sickle on the bearing-surfaces c of g the fingers and deposit its resinous or gummy substance which it holds in solution.

This invention has been practically tested and has been found to operate well, cutting clean without any tendency to choke or clog. Having thus described my invention, whatI claim as new, and desire to secure by Letters Patent, isl The arrangement of the cutters eand cutterbar G with theisupporting-projections knifeedged, backward-opening recesses b, space be` tween the projections and fingers, and lingerbar A, in the manner and for the purpose herein shown and described.

DANIEL H. THAYER. Witnesses:

`A. J. PRENTICE,

L. G. BAKER. 

